/**
 * Created by Administrator on 2016/7/15.
 */
"use strict";
swan_pc
    .factory('Excel',function($window){
        var uri='data:application/vnd.ms-excel;base64,',
            template='<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>',
            base64=function(s){return $window.btoa(unescape(encodeURIComponent(s)));},
            format=function(s,c){return s.replace(/{(\w+)}/g,function(m,p){return c[p];})};
        return {
            tableToExcel:function(tableId,worksheetName){
                var table=$(tableId),
                    ctx={worksheet:worksheetName,table:table.html()},
                    href=uri+base64(format(template,ctx));
                return href;
            }
        };
    })
